CN114328353A - WEB interactive serial port communication framework - Google Patents
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Abstract
The invention discloses a WEB interactive serial port communication architecture, which starts a serial port communication program when opening a menu page of a WEB management interface; the web management interface sends data such as authorization to a serial port communication program in a server background main program; sending the data received by the serial port communication program into an instruction processing program for processing, and transmitting the data to a corresponding lower computer; sending the received data returned by the lower computer into an instruction processing program for processing, transmitting the data into a web management interface, and converting the data into a UI interactive mode to be displayed on the web management interface; when closing the menu page of the web management interface, closing the serial port communication program; according to the technical scheme, the method is realized among the lower computer, the server and the WEB management interface based on a serial port + websocket form, the serial port communication program is independently used as a service program and called by a server background main program, the interactive interface shields specific instruction details, and the overall architecture mode is original.
Description
Technical Field
The invention relates to the technical field of communication architectures, in particular to a WEB interactive serial port communication architecture.
Background
With the vigorous development of the internet of things technology, more and more terminals and lower computer upper cloud management requirements are met, and the safety opening of functions such as lower computer diagnosis, mode switching, fault recovery and the like is provided, while the lower computer often has only a limited interface communication function, more management functions are serial port command interaction modes, how to safely interact with the lower computer in real time in a WEB management system, and the provision of friendly user experience becomes a difficult problem and challenge.
How is the command function of serial communication of the lower computer remotely managed by the manager? How is the PIN automatically populated? How can it proceed automatically in the links that need automatic confirmation or rejection? How can multiple command interactions become a business management process? The invention particularly provides a communication architecture design invention because no remote complete interactive framework scheme exists in the market.
Disclosure of Invention
In the prior art, the present invention is directed to a serial communication command mode architecture.
In order to achieve the purpose, the invention provides the following technical scheme:
a WEB interactive serial communications architecture, the architecture comprising:
the web management interface is used for carrying out two-way real-time communication based on a websocket protocol with the server and converting serial port instruction communication into a UI interactive operation mode;
the server background main program is used for calling a serial port drive library, an instruction processing program, a serial port communication program and a serial port control script which are installed in the server; the serial port control script is used for controlling the start and stop of a serial port communication program;
the serial port communication program is used for locally receiving and sending data;
the instruction processing program is used for analyzing and processing the received data;
and the lower computer is used for being connected with the server through a USB serial port line.
The invention also provides a communication method of the WEB interactive serial port communication architecture, which comprises the following steps:
s1: when a menu page of a web management interface is opened, calling a serial port control script in a background main program of a server, and starting a serial port communication program;
s2: the web management interface sends data to a serial port communication program in a server background main program;
s3: sending the data received by the serial port communication program into an instruction processing program for processing, and transmitting the processed data to a corresponding lower computer;
s4: data which are received by the serial port communication program and returned by the lower computer are sent to the instruction processing program for processing, the processed data are sent to the web management interface, and the returned data are converted into a UI interactive mode and displayed on the web management interface;
s5: and when the menu page of the web management interface is closed, calling a serial port control script in the background main program of the server, and closing the serial port communication program.
Further, the specific implementation process of step S1 is as follows:
s11, opening a management menu page of the lower computer in the web management interface; calling a serial port control script in a background main program of the server by starting a restfull api interface, and starting a serial port communication program;
and S12, opening the websocket client end to establish connection bidirectional real-time communication with the server.
Further, the specific implementation process of step S2 is as follows:
s21: clicking a corresponding function menu or button in a WEB management page;
s22: the WEB management page sends data to a serial port communication program in a server background main program through a websocket client;
the data comprises instructions, instruction steps, instruction parameters and messages;
meanwhile, the data is transmitted in a Json message format; the Json message is a lightweight data exchange format, so that people can read and write the Json message easily, and a machine can analyze and generate the Json message conveniently; the JSON is suitable for a scene of data interaction, and is particularly suitable for data interaction between a website foreground and a server.
Further, the specific implementation process of step S3 is as follows:
and sending the data received by the serial port communication program into an instruction processing program, analyzing the received data to obtain an instruction, an instruction step, an instruction parameter and a message, and sending the processed data to a corresponding lower computer.
Still further, the instruction processing program includes:
an instruction input module: setting and triggering a text line needing to be input, and mainly used for additionally inputting supplementary information in the instruction process;
an instruction interaction module: the method is mainly used for judging whether interactive operation is needed in the instruction process; if interaction is needed, a plurality of instruction input modules can be coupled, and specific different types of interaction input processing are processed in sequence according to the adding sequence;
instructing the next module to: the method is mainly used for opening a new branch in instruction interaction, processing the next module and forming a responsibility chain on a program;
an instruction ending module: mainly to realize how the instruction is to be processed at the end.
Further, the specific implementation process of step S4 is as follows:
s41: sending data which is received by the serial port communication program and returned by the lower computer into an instruction processing program for processing; resolving the returned data into an instruction, an instruction step, an instruction parameter, an error code and a message;
s42: and transmitting the processed data into the web management interface, and displaying the returned data on the web management interface in a UI (user interface) interaction mode.
Further, the specific implementation process of step S5 is as follows:
s51, in the web management interface, closing the management menu page of the lower computer, calling the serial port control script in the server background main program, and closing the serial port communication program;
and S52, closing the websocket client end and disconnecting the bidirectional real-time communication with the server.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, the method is realized through serial communication and websocket protocol communication among the lower computer, the server and the WEB management interface, the serial communication program is independent to be a service program and is called by a server background main program, the interactive interface shields specific instruction details, and the overall architecture mode is original.
In addition, in the serial port communication program, a built-in serial port command mode architecture, an instruction processing program and a multi-instruction are integrated into a service flow (matched with a responsibility chain instruction processor for use), which is also original by the invention; default implementation modes such as automatic password filling, automatic confirmation, automatic filtering and the like are built in the instruction processing program to fill the blank of reasonable command interaction flow.
According to the technical scheme, real-time interactive communication of serial port instructions is realized on a lower computer, a server and a WEB management interface, great supplement is made on the completeness and the usability of the scheme, abstract packaging and combined design are made aiming at an instruction interaction link, so that a complex business process is simplified and semi-automated, and an innovative operation mode is provided on the interaction of instructions and a UI; and the serial communication program and the server main program are fully decoupled, so that the serial communication program can provide serial communication service and can be independently used as a common serial command line mode.
By implementing the scheme, remote one-key safe real-time control of the lower computer (such as an encryption machine) becomes possible, and great convenience and simplicity are provided for actual operation and maintenance; in addition, the abstract design and the architecture of the scheme can be reused in the same type of communication scene, and the method has a larger application prospect of the Internet of things.
The technical scheme of the invention adopts a lower computer (such as an encryption machine) with serial port communication capability to convert the instruction interaction of the serial port communication into a command mode in a WEB system and comb the instruction logic relationship in the command mode into flow interaction; meanwhile, the command needing to input the PIN can be input through automatic filling or front-end encryption transmission and back-end security decryption; more importantly, UI translation substitution commands are supported on a WEB front-end page to carry out friendly experience interaction, and special command input is supported to be transferred back to a lower computer to be executed in real time.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the overall serial communication architecture of the present invention.
FIG. 2 is a schematic diagram of serial port communication interaction timing sequence according to the present invention.
FIG. 3 is a block diagram of an instruction processing program according to the present invention.
FIG. 4 is a block diagram of an instruction coupling/interaction processing module according to the present invention.
FIG. 5 is a schematic view of a WEB management interface according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to one of fig. 1-5, the present invention provides a technical solution:
a WEB interactive serial communications architecture, the architecture comprising:
the web management interface is used for carrying out two-way real-time communication based on a websocket protocol with the server and converting serial port instruction communication into a UI interactive operation mode;
the server background main program is used for calling a serial port drive library, an instruction processing program, a serial port communication program and a serial port control script which are installed in the server; the serial port control script is used for controlling the start and stop of a serial port communication program;
the serial port communication program is used for locally receiving and sending data;
the instruction processing program is used for analyzing and processing the received data;
and the lower computer (such as an encryption machine) is connected with the Linux server by a USB serial port line.
Further, the serial port communication program includes:
in the connection phase, a server enumerates currently available serial communication COM ports, and a default USB serial port is selected; a server background main program sets a flow control mode and sets connection parameters; wherein, the parameters comprise baud rate, data bit, stop bit and parity check mode; and simultaneously registering a serial port event monitor for serial port communication connection.
And the serial port event data receiving and monitoring processing, when the serial port communication program receives the data event, the data content of the serial port cache region is actively read, the data content is analyzed according to lines and sent to the instruction interaction module, and the subsequent mode conversion is processed.
And a serial port instruction writing-out stage, namely opening a serial port output stream and writing the instruction content to be sent currently.
The special serial port instruction supports the output stream of the serial port, and an ending control symbol (0x03) and an Enter line wrapping symbol (\\ r) are written into the output stream of the serial port.
And in the disconnection stage, the serial port event monitor is removed, the serial port communication connection is disconnected, and resources are released.
Wherein the instruction processing program includes:
an instruction input module: setting a text line required to be input by triggering, and mainly used for additionally inputting supplementary information in the instruction process, wherein the supplementary information comprises data such as passwords, selection steps, options and the like;
an instruction interaction module: the method is mainly used for judging whether interactive operation is needed in the instruction process; if interaction is needed, a plurality of instruction input modules can be coupled, and specific different types of interaction input processing are processed in sequence according to the adding sequence;
instructing the next module to: the method is mainly used for opening a new branch in instruction interaction, processing the next module and forming a responsibility chain on a program;
an instruction ending module: mainly to realize how the instruction is to be processed at the end.
Furthermore, the serial communication and the websocket protocol communication are realized among the lower computer, the server and the WEB management interface, the serial communication program is independent as a service program and is called by a server background main program, the interactive interface shields specific instruction details, and the overall architecture mode is original to the invention.
The web management interface and the server adopt two-way real-time communication based on a websocket protocol; the full-duplex communication (full-duplex) between the web management interface and the server is realized, the real-time communication between the web management interface and the server is realized by the WebSocket protocol, the server can directly send data to the web management interface without initiating a request by the web management interface, and the server resources and the bandwidth can be better saved and the real-time communication can be realized.
Further, a serial port communication program, a serial port driver library, an instruction processing program, a serial port communication program and a serial port control script are independently used as service programs and are called by a server background main program; the serial port communication program, the serial port driver library, the instruction processing program, the serial port communication program and the serial port control script are in modular design and can be independently called, so that the real-time communication of the server background main program is realized; the method can provide great convenience and simplicity for the actual operation and maintenance of the serial port communication command mode architecture.
As shown in fig. 2 to 5, the present invention further provides a communication method of a WEB interactive serial communication architecture, and the method of the present invention is implemented as follows:
s1: when a menu page of a web management interface is opened, calling a serial port control script in a background main program of a server, and starting a serial port communication program;
s2: the web management interface sends data to a serial port communication program in a server background main program;
s3: sending the data received by the serial port communication program into an instruction processing program for processing, and transmitting the processed data to a corresponding lower computer;
s4: data which are received by the serial port communication program and returned by the lower computer are sent to the instruction processing program for processing, the processed data are sent to the web management interface, and the returned data are converted into a UI interactive mode and displayed on the web management interface;
s5: and when the menu page of the web management interface is closed, calling a serial port control script in the background main program of the server, and closing the serial port communication program.
Furthermore, real-time interactive communication of serial port instructions is realized on the lower computer, the server and a WEB management interface, great supplement is made on the completeness and the usability of a scheme, abstract packaging and combined design are made aiming at an instruction interaction link, so that a complex business process is simplified and semi-automated, and an innovative operation mode is provided on the interaction of instructions and a UI; and the serial communication program and the server main program are fully decoupled, so that the serial communication program can provide serial communication service and can be independently used as a common serial command line mode.
The remote one-key safe real-time control of the lower computer (such as an encryption machine) becomes possible, and the actual operation and maintenance provides great convenience and simplicity; in addition, the abstract design and the architecture of the scheme can be reused in the same type of communication scene, and the method has a larger application prospect of the Internet of things.
Further, the specific implementation process of step S1 is as follows:
s11, opening a management menu page of the lower computer in the web management interface; by starting a restfull api interface, a serial port control script in a background main program of the server is called, and a serial port communication program is started.
Wherein, the server is connected with one or more lower computers (such as an encryption machine) through a USB serial port line; and in the background main program of the server, a communication serial port of a serial port lower computer is added.
And S12, opening the websocket client end to establish connection bidirectional real-time communication with the server.
Further, the specific implementation process of step S2 is as follows:
s21: clicking a corresponding function menu or button in a WEB management page;
the buttons comprise an authorization button, an authorization checking state button, a fault clearing button or an interaction button for authorizing the next card in multiple steps, and the like;
furthermore, the communication content of the WEB management page is divided into two parts, namely an instruction step and an instruction step.
S22: the WEB management page sends data to a serial port communication program in a server background main program through a websocket client;
further, the data comprises instructions, instruction steps, instruction parameters and messages; the instruction comprises an instruction name, a command, a parameter and the like;
further, when the lower computer is a P10K encryption machine, for example, an authorization instruction, a fault clearing instruction, a status query instruction, a version information instruction, and the like can be implemented.
Furthermore, communication data between the WEB management page and a background main program of the server is transmitted in a json message format.
The Json message is a lightweight data exchange format, so that people can read and write the Json message easily, and a machine can analyze and generate the Json message conveniently; the JSON is suitable for a scene of data interaction, and is particularly suitable for data interaction between a website foreground and a server.
Further, the specific implementation process of step S3 is as follows:
and sending the data received by the serial port communication program into an instruction processing program, analyzing the received data to obtain an instruction, an instruction step, an instruction parameter and a message, and sending the processed data to a corresponding lower computer.
When the lower computer is a P10K encryption machine, the instruction processor processing program applied to the P10K encryption machine comprises:
1) the input LMK ID module can automatically fill in the default LMK ID of the encryption machine;
2) inserting a double-IC card module, and respectively processing a first administrator card and a second administrator card through a next instruction processor of a transmission responsibility chain after identifying and inputting the first administrator card and the second administrator card;
3) inputting a PIN processor, wherein the PIN is decrypted and filled in when the input is required through presetting the encrypted ciphertext of the AES;
4) view more information processors;
5) and the automatic next processor automatically fills in the Enter line feed character and enters the next step.
Further, the specific implementation process of step S4 is as follows:
s41: sending data which is received by the serial port communication program and returned by the lower computer into an instruction processing program for processing; resolving the returned data into an instruction, an instruction step, an instruction parameter, an error code and a message;
s42: and transmitting the processed data into the web management interface, and displaying the returned data on the web management interface in a UI (user interface) interaction mode.
The method comprises the steps of analyzing instructions, instruction steps, instruction parameters, error codes and messages from json messages received by a web management interface; and if the error code is successful, responding to corresponding page control logic according to specific instructions and steps, such as skipping to the next authorized card flow, message reminding, and taking out the card number and other information in the parameters for displaying.
Furthermore, in the web management interface, the UI interactive interface is updated at intervals; the data accuracy on the web management interface can be guaranteed.
Further, the specific implementation process of step S5 is as follows:
s51, in the web management interface, closing the management menu page of the lower computer, calling the serial port control script in the server background main program, and closing the serial port communication program;
and S52, closing the websocket client end and disconnecting the bidirectional real-time communication with the server.
Further, a lower computer (such as an encryption machine) with serial port communication capability is adopted to convert the instruction interaction of the serial port communication into a command mode in the WEB system, and the instruction logic relationship is combed to be flow interaction; meanwhile, the command needing to input the PIN can be input through automatic filling or front-end encryption transmission and back-end security decryption; more importantly, UI translation substitution commands are supported on a WEB front-end page to carry out friendly experience interaction, and special command input is supported to be transferred back to a lower computer to be executed in real time.
In conclusion, the real-time interactive communication of the serial port instruction is realized on the lower computer, the server and the WEB management interface, the completeness and the usability of the scheme are greatly supplemented, the abstract packaging and the combined design are carried out aiming at the instruction interaction link, the complex business process is simplified and semi-automated, and an innovative operation mode is provided on the instruction and UI interaction; and the serial port communication program and the server main program are fully decoupled, so that the serial port communication program can provide the serial port communication service of the websocket and can be independently used as a common serial port command line mode.
By implementing the scheme, remote one-key safe real-time control of the lower computer (such as an encryption machine) becomes possible, and great convenience and simplicity are provided for actual operation and maintenance; in addition, the abstract design and the architecture of the scheme can be reused in the same type of communication scene, and the method has a larger application prospect of the Internet of things.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A WEB interactive serial port communication architecture is characterized in that: the architecture comprises:
the web management interface is used for carrying out two-way real-time communication based on a websocket protocol with the server and converting serial port instruction communication into a UI interactive operation mode;
the server background main program is used for calling a serial port drive library, an instruction processing program, a serial port communication program and a serial port control script which are installed in the server; the serial port control script is used for controlling the start and stop of a serial port communication program;
the serial port communication program is used for locally receiving and sending data;
the instruction processing program is used for analyzing and processing the received data;
and the lower computer is used for being connected with the server through a USB serial port line.
2. A communication method of WEB interactive serial port communication architecture is characterized in that: the method comprises the following steps:
s1: when a menu page of a web management interface is opened, calling a serial port control script in a background main program of a server, and starting a serial port communication program;
s2: the web management interface sends data to a serial port communication program in a server background main program;
s3: sending the data received by the serial port communication program into an instruction processing program for processing, and transmitting the processed data to a corresponding lower computer;
s4: sending data which is received by the serial communication program and returned by the lower computer into an instruction processing program for processing, transmitting the processed data into a web management interface, and displaying the returned data on the web management interface in a UI (user interface) interaction mode;
s5: and when the menu page of the web management interface is closed, calling a serial port control script in the background main program of the server, and closing the serial port communication program.
3. The method of WEB interactive serial port communication architecture according to claim 2, wherein: the specific implementation process of step S1 is as follows:
s11, opening a management menu page of the lower computer in the web management interface; calling a serial port control script in a background main program of the server by starting a restfull api interface, and starting a serial port communication program;
and S12, opening the websocket client end to establish connection bidirectional real-time communication with the server.
4. The method of WEB interactive serial port communication architecture according to claim 2, wherein: the specific implementation process of step S2 is as follows:
s21: clicking a corresponding function menu or button in a WEB management page;
s22: the WEB management page sends data to a serial port communication program in a server background main program through a websocket client;
the data comprises instructions, instruction steps, instruction parameters and messages; and the data is transmitted in the format of json message.
5. The method of WEB interactive serial port communication architecture according to claim 2, wherein: the specific implementation process of step S3 is as follows:
and sending the data received by the serial port communication program into an instruction processing program, analyzing the received data to obtain an instruction, an instruction step, an instruction parameter and a message, and sending the processed data to a corresponding lower computer.
6. The method of WEB interactive serial port communication architecture according to claim 5, wherein: the instruction processing program includes:
an instruction input module: setting and triggering a text line needing to be input, and mainly used for additionally inputting supplementary information in the instruction process;
an instruction interaction module: the method is mainly used for judging whether interactive operation is needed in the instruction process; if interaction is needed, a plurality of instruction input modules can be coupled, and specific different types of interaction input processing are processed in sequence according to the adding sequence;
instructing the next module to: the method is mainly used for opening a new branch in instruction interaction, processing the next module and forming a responsibility chain on a program;
an instruction ending module: mainly to realize how the instruction is to be processed at the end.
7. The method of WEB interactive serial port communication architecture according to claim 2, wherein: the specific implementation process of step S4 is as follows:
s41: sending data which is received by the serial port communication program and returned by the lower computer into an instruction processing program for processing; resolving the returned data into an instruction, an instruction step, an instruction parameter, an error code and a message;
s42: and transmitting the processed data into the web management interface, and displaying the returned data on the web management interface in a UI (user interface) interaction mode.
8. The method of WEB interactive serial port communication architecture according to claim 2, wherein: the specific implementation process of step S5 is as follows:
s51, in the web management interface, closing the management menu page of the lower computer, calling the serial port control script in the server background main program, and closing the serial port communication program;
and S52, closing the websocket client end and disconnecting the bidirectional real-time communication with the server.
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